Logic level converter board
About the Logic level converter board
Logic level converter board is an open source PCB design by jbilander, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 51 × 64 mm, with 17 components from 13 distinct parts.
Other key parts include the SN74CBTD16211. By type, the board carries 9 connectors, 2 jumpers, 2 capacitors, 1 IC, 1 switch and 1 diode.
From the project
A bi-directional high-speed TTL-Compatible level shifter board 5V ⇄ 3V3 for tinkering
PART | Value | Description ---| ---------------| ------- D1 | 2.54 mm pin pitch | LED Diode (optional Power on/off indicator) R1 | 100-330 Ohm | 1206 (populate if D1, calculate suitable resistor value to use with D1) C1 | 10-100 uF | 1210 C2 | 0.1 uF | 1206 U1 | SN74CBTD16211 https://www.ti.com/lit/ds/symlink/sn74cbtd16211.pdf| TSSOP-566.1x14mmP0.5mm | Pushbutton switch SW7x7x12mmDPDT | Barrel Jack 5.5x2.1mm | Power +5V center pin positive or via pinheader (verify polarity before connecting) | 2.54 mm jumpers to enable/disable /1OE (first 12-bits) and /2OE (second 12-bits), either enable via…
Main components on the Logic level converter board
Logic level converter board bill of materials (BOM)
17 components, 13 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN74CBTD16211 | TSSOP-56_6.1x14mm_P0.5mm | U1 |
| 2 | Conn_02x24_Odd_Even | PinHeader_2x24_P2.54mm_Vertical | J1, J3 |
| 2 | Conn_01x24 | PinHeader_1x24_P2.54mm_Vertical | J2, J4 |
| 1 | Barrel_Jack_Switch | BarrelJack_Horizontal | J5 |
| 1 | Conn_02x01 | PinHeader_2x01_P2.54mm_Vertical | J6 |
| 2 | Conn_02x06_Odd_Even | PinHeader_2x06_P2.54mm_Vertical | J7, J8 |
| 1 | Conn_02x02_Odd_Even | PinHeader_2x02_P2.54mm_Vertical | J9 |
| 2 | Jumper_3_Open | PinHeader_1x03_P2.54mm_Vertical | JP1, JP2 |
| 1 | SW_Push_DPDT | SW_Push_THT_7x7x12mm_DPDT | SW1 |
| 1 | LED | LED_D3.0mm | D1 |
| 1 | C | C_1210_3225Metric_Pad1.42x2.65mm_HandSolder | C1 |
| 1 | C | C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C2 |
| 1 | R | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R1 |
Logic level converter board design files
The KiCad project lives in the jbilander/Logic-level-converter-board repository on GitHub; these links point at the commit this page was built from.
- LayoutKiCad/LLCB.kicad_pcb
Logic level converter board: common questions
How big is the Logic level converter board?
The Logic level converter board measures 51 × 64 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Logic level converter board?
17 components, from 13 distinct parts. The full bill of materials is listed on this page.
Where can I download the Logic level converter board design files?
From the jbilander/Logic-level-converter-board repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Logic level converter board design in my own project?
Yes, under the terms of its GPL-2.0 license, which jbilander chose for the repository.